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Finding the Fourth Proportional to 13,792.61, 20,688.96 and 3,797.49

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Solution

The fourth proportional to 13,792.61, 20,688.96 and 3,797.49 is: 5,696.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.61 : 20,688.96 = 3,797.49 : x
  2. Step 2: Convert to fraction form
    13,792.61/20,688.96 = 3,797.49/x
  3. Step 3: Cross multiply
    13,792.61x = 20,688.96 × 3,797.49
  4. Step 4: Simplify right side
    13,792.61x = 78,566,118.71
  5. Step 5: Solve for x
    x = 78,566,118.71/13,792.61
  6. Step 6: Final answer
    x = 5,696.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.